:root{--bg:#fff;--card:#f6f5f1;--tx:#1f1e1c;--mut:#6b6a66;--bd:#dcdad3;--ac:#185fa5}
@media (prefers-color-scheme:dark){:root{--bg:#161614;--card:#21201d;--tx:#eceae4;--mut:#a09e97;--bd:#33322e;--ac:#7fb2e8}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.5 system-ui,"Noto Sans","Noto Sans JP",sans-serif}
header,main{max-width:900px;margin:0 auto;padding:16px}
header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.right{text-align:right}
.big{font-size:24px;font-weight:500}.mono{font-family:ui-monospace,Menlo,monospace}
.sub{font-size:13px;color:var(--mut)}.lb{font-size:12px;color:var(--mut);margin:0 0 4px}
.card{background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:12px 14px;margin-bottom:10px}
.cards,.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.cards .card,.two .card{margin:0}
.head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
button,select{font:inherit;font-size:14px;padding:4px 10px;border:1px solid var(--bd);border-radius:8px;background:var(--bg);color:var(--tx)}
canvas{width:100%;height:130px;border-radius:8px;background:#0b0b0b;display:block}
.bar{height:6px;background:var(--bd);border-radius:3px;margin-top:8px}#smbar{height:6px;width:0;background:var(--ac);border-radius:3px}
.row{display:grid;grid-template-columns:42px repeat(24,1fr);gap:2px;align-items:center;font-size:11px;color:var(--mut);margin-bottom:2px}
.cell{height:16px;border-radius:2px;background:var(--bd)}
.flags{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap;margin-bottom:6px}
.flags button{padding:0;border:2px solid transparent;border-radius:6px;background:none;cursor:pointer;line-height:0}
.flags button[aria-pressed=true]{border-color:var(--ac)}
.flags img{width:30px;height:22px;object-fit:cover;border-radius:4px;display:block}
.about p{margin:0}#about{white-space:pre-line}.about .more{margin-top:10px}.about .more a{color:var(--ac)}.about .lb{margin-bottom:6px}
#map{background:#e8edf2;aspect-ratio:2/1;height:auto}
@media (prefers-color-scheme:dark){#map{background:#12161b}}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chip{font-size:12px;padding:2px 8px;border-radius:6px;background:var(--bd);color:var(--tx)}
.chip.good{background:#c0dd97;color:#27500a}.chip.fair{background:#fac775;color:#633806}.chip.poor{background:#f7c1c1;color:#791f1f}
table{width:100%;border-collapse:collapse;font-size:13px}td,th{padding:2px 4px;text-align:left;font-weight:400}th{color:var(--mut)}

.board{position:relative;overflow:hidden;height:196px;background:#101418;border-radius:10px;padding-top:34px}
.bmark{position:absolute;top:6px;left:var(--mx,60px);transform:translateX(-50%);background:#ef9f27;color:#412402;font-size:12px;font-weight:500;padding:2px 10px;border-radius:12px;z-index:2}
.bmark:after{content:"";position:absolute;left:50%;bottom:-6px;margin-left:-6px;border:6px solid transparent;border-bottom:0;border-top-color:#ef9f27}
.btrack{position:absolute;top:34px;left:0;height:156px}
.bc{position:absolute;top:0;width:116px;height:152px;padding:6px 8px;border:1px solid #2b323a;border-radius:8px;background:#171c22;color:#d8dde3;text-align:center;box-sizing:border-box}
.bc.act{border-color:#ef9f27;background:#222a33}
.bc b{display:block;font:500 16px ui-monospace,Menlo,monospace}
.bc small{display:block;font-size:11px;color:#8b95a1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.bc small.dist{margin-bottom:6px}
.lamps{display:flex;flex-direction:column;gap:3px}
.lamp{display:flex;align-items:center;gap:6px;font-size:11px;color:#8b95a1;height:14px}
.lamp i{display:block;width:30px;height:10px;border-radius:3px;background:#2b323a;transition:background .25s,transform .35s}
.lamp.air i{background:#ef9f27;animation:pulse .6s infinite alternate}
.lamp.ok i{background:#639922;transform:rotateX(360deg)}
.lamp.no i{background:#7a2d2d}
@keyframes pulse{from{opacity:.45}to{opacity:1}}

.loc{font-size:18px;font-weight:500;margin-top:6px}
.clocks{display:flex;gap:24px;justify-content:flex-end;flex-wrap:wrap}

.bc{cursor:pointer}
#binfo .head{gap:10px;flex-wrap:wrap;justify-content:flex-start}#binfo .head button{margin-left:auto}
#binfo table td:first-child{width:38%}
footer{max-width:900px;margin:0 auto;padding:8px 16px 28px;text-align:center;font-size:14px}
footer a{color:var(--ac)}
.tw{overflow-x:auto}
@media (max-width:600px){
 header,main{padding:10px}
 header{flex-direction:column;align-items:stretch}.right{text-align:left}
 .flags{justify-content:flex-start}.clocks{justify-content:flex-start;gap:16px}
 .big{font-size:20px}
 .cards,.two{grid-template-columns:1fr}
 .board{height:190px}
 .row{grid-template-columns:30px repeat(24,1fr);font-size:10px}
 td,th{padding:2px 2px}
}
#cond,#log,#hm{overflow-x:auto}
.legal{max-width:720px;margin:0 auto;padding:16px;line-height:1.6}.legal h1{font-size:22px}.legal h2{font-size:17px;margin-top:20px}.note{background:var(--card);border:1px solid var(--bd);border-radius:8px;padding:8px 12px;font-size:14px}
@media (max-width:600px){.flags{gap:3px}.flags img{width:28px;height:20px}}

/* ---- QRM-Invasion (one-page game section) ---- */
.g-wrap{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start}
.g-screen{flex:0 0 auto;width:min(100%,380px);margin:0 auto}
.g-side{flex:1 1 220px;min-width:200px}
.g-crt{position:relative;border:8px solid #2a2a2a;border-radius:16px;box-shadow:0 0 0 2px #444;background:#000;overflow:hidden}
.g-crt::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.25) 0 1px,transparent 1px 3px);box-shadow:inset 0 0 50px rgba(0,0,0,.7)}
#g-canvas{height:auto;aspect-ratio:224/288;image-rendering:pixelated;image-rendering:crisp-edges;border-radius:0;outline:none}
.g-pad{display:flex;gap:8px;margin-top:8px}
.g-pad button{flex:1;padding:14px 0;font-size:18px;font-weight:700;touch-action:none;-webkit-user-select:none;user-select:none}
.g-pad .g-fire{flex:1.6}
.g-mute{font-size:12px;padding:2px 8px}
.g-entry{margin-bottom:8px}
.g-entry input{font:16px ui-monospace,Menlo,monospace;padding:6px 8px;width:11em;border:1px solid var(--bd);border-radius:8px;background:var(--bg);color:var(--tx);text-transform:uppercase}
.g-msg{min-height:1.4em;font-size:13px;color:var(--ac)}
.g-list{margin:0 0 8px;padding-left:26px;font-size:14px}
.g-list li{padding:1px 4px;border-radius:4px}.g-list li.me{background:var(--bd)}
.g-list .sc{float:right;color:var(--mut)}
#play{cursor:pointer}
#play.attn{border-color:var(--ac);color:var(--ac);font-weight:600;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 transparent}50%{box-shadow:0 0 0 5px color-mix(in srgb,var(--ac) 30%,transparent)}}
@media (prefers-reduced-motion:reduce){#play.attn{animation:none}}
.ctl{display:flex;align-items:center;gap:12px}
.vol{display:flex;align-items:center;gap:6px;font-size:14px}
#vol{width:90px;accent-color:var(--ac);cursor:pointer}
@media (max-width:420px){#vol{width:64px}}
.vstats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:10px}
#vmap{background:#e8edf2;aspect-ratio:2/1;height:auto}
@media (prefers-color-scheme:dark){#vmap{background:#12161b}}
@media (max-width:600px){.vstats{grid-template-columns:repeat(2,1fr)}}
#music a{color:var(--ac)}
#mplay,#mnext{min-width:40px;cursor:pointer}#mplay{font-weight:700}
.mseek{display:flex;align-items:center;gap:8px}
#mseek{flex:1;accent-color:var(--ac);cursor:pointer}#mvol{width:90px;accent-color:var(--ac);cursor:pointer}
@media (max-width:420px){#mvol{width:64px}}
.mlinks a{margin-left:10px;white-space:nowrap}.ico{vertical-align:-4px;margin-right:4px}

/* one colour per beacon band (14.1 / 18.1 / 21.1 / 24.9 / 28.2 MHz); set by app.js as data-band on <html> */
:root{--band:#ef9f27}
:root[data-band="0"]{--band:#e5534b}:root[data-band="1"]{--band:#e8a317}:root[data-band="2"]{--band:#3fb950}
:root[data-band="3"]{--band:#2fb8c6}:root[data-band="4"]{--band:#a371f7}
#bband,#qrg{color:var(--band);font-weight:600}
.bc.act{border-color:var(--band)}
@keyframes bandflash{0%{box-shadow:0 0 0 0 var(--band);background-color:color-mix(in srgb,var(--band) 45%,transparent)}
 100%{box-shadow:0 0 0 14px transparent;background-color:transparent}}
#bband.flash,#qrg.flash{animation:bandflash .9s ease-out;border-radius:6px}
#board.flash{animation:bandflash .9s ease-out}
@media (prefers-reduced-motion:reduce){#bband.flash,#qrg.flash,#board.flash{animation:none}}